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Show Grand Junction Is 1 Affected by Boom Effects of the uranium InGrand Juncdustrys growth on tions economy is reflected in the increase in salaries reported in nine maior businesses in 1953 and 1954. It has been estimated that over $685,000 more w'as paid out in the form of salaries during 1954 than in 1953. A in salary, with accompanying layoffs, by the Denver and Rio Grande railroad f Vfk j j twA4 V'Svf N ... rj ; Jt , vv-- , - A : A r';rTr' ? cut-bac- y V' 'SSK - ,v . V4 , .'-- 1 s .? s - '' . -- ' V5& v:ii MANY YEARS AGO someone built a fine home in Unaweep Canon in western Colorado, but later abandoned it to the elements. Now nothing but a shell remains of the once proud structure, surrounded by weeds and overgrowth. The imposing mountain in the background is similar to many such formations found in the district Surveying by Air Not As Accurate as Reported Airborne radiation surveying has proved a rapid, cheap, and effective method for uranium exploration . The technique ig relatively simple when applied as a support-bi- g function of a general exploration program and can be managed and financed with a small staff and resonable capital investment. Airborne surveying can also be done on a contract basis and several commercial survey companies after this service. The effectiveness of the technique can be measure in terms of millions of dollars worth of uranium ore that bas been detected from the air and that has resulted from mine production in the last three years. Equally valuable has been the extension of mineralized areas and the information supplied by airborne work used in guiding ground reconnaissance. Uranium ore on the ground can be located from the air by detecting the radiation that is always given off by natural uranium ore. This is generally true but several qualifications are in order. Airborne surveying can result in the detection and location of outcropping uranium ore only Jf the outcrop is large enough or high enough m grade. The actual size and grade that can be detected depends upon the altitude of the survey, the speed at which the aircraft flies, and the type of instrument utilized. At 100 ft. or less with the proper technique, a survey should be able to detect an Melefa Wilson Real Estate & Insurance Ranches Business Properties & BOX 504 EAGLE, COLO. 66 HEINER5 Service Station On 6 & 24 Highways MINING SUPPLIES Eagle, Colorado Harrison's Cafe 24 HOUR TRY US ONCE YOU WILL TRY US OFTEN EAGLE COLORADO Fully Staffed For Your Convenience outcrop several hundred square feet in area of an average grade of 0.1 percent U308. Generally speaking a smaller area can be detected if the grade is higher. At between 200 and 500 ft. a survey should detect all outcrops with an area larger than 1,000 sq. ft. and a grade of around 0.2 or 0.3 percent U308. These are very general estimates and are offered only to give an idea as to what might be expected. Certain other factors must be considered in the evaluation of the technique. Production of radiation is not unique to uranium ore. There is radiation present at any location on the earth and what to look for is an increase in rate of radiation and not just the detection of radiation. The indication of natural radiation by an instrument is called the background reading and all indications of additional radiation or anomalies are measured in terms of increase over the background reading. There must be enough uranium are outcropping at the surface to supply enough radiation for a readable increase. With the aircraft flying at some particular altitude there may be small amounts of uranium mineralization outcropping below that cannot be detected. The ore must be exposed at the surface (for all practical purposes) because a foot or so of barren overburden will render undetectable the gamma radiation from the ore beneath it. The grade of outcropping ore cannot be determined by an air-- : borne survey, although the general extent of a deposit can be determined in special cases where something is known of the geolog-- i icai control and it is possible to fly close enough to the outcrop (20-5feet). It is necessary to fly close to any outcrop or above any area because the radiation given off by uranium decreases in intensity as you get farther away from it.. Flying at altitudes above 500 feet, many small areas of mineralization will not be detected even with the best instruments. Outcrops that are detected at or above 500 feet will be difficult to locate on the ground and difficult to partially evaluate by an observer from the air. To be effective, an airborne survey must be planned on the basis of geologic guidance. The probability of success is greatly increased by flying not merely geo--, graphical areas hut areas select-- , ed on geologic favorability. Some examples of effective application would be surveying of areas that might be extensions of already existing deposits, extension of structures known to be favorable, or extensions of sedimentary horizons know to be favorable. On the Colorado Plateau the nature of terrain and outcrops makes it a very favorable area for the application of low level airborne surveying. A two-yecontract for the sale of copper was concluded in Santiago on Nov. 27 between mediumsized and small Chilean copper producers and the Norddeutsche Affinerie, of Hamburg. 0 Moderately Furnished MCS Cafe 110 E. 3rd Rifle & Phone 90 Colorado amounting to approximately one million dollars cut seriously into the gains made by industrial establishments here. However, the railroad remained the top employer ini the district with a total of 1,228 workers in the Grand Junction division and a payroll of $6,577,948 during 1954. In the eight other employers contacted in the survey the total increase over 1953 payroll amounted to $1,922,507, and each of the businesses was directly affected by the uranium Industry. These included Minerals Engineering, Climax Uranium and the Atomic Energy Commission. Others contacted which were affected by uranium directly through population growth were the Mountain State Telephone & Telegraph Co., district schools. Mesa College, Public Service Co., and the citys newspaper. The Daily SentineL The Atomic Energy Commission, with its related groups, accounts for the second largest payroll in the district with 1,162 employees as of Aug. 1, 1954 as compared to 931 at the beginning of 1953. Payroll for 1954 was $4,067,000, for ABC and private installations serving K directly, U. S. such as Walker-LybargAmerican Service, Geological Smelting & Refining, National Lead Co., and Galigher Co. Public Service Co., employed 132 people and reported a payroll of about $530,000 for 1954; Mountain State Telephone bad 195 workers on a payroll estiMinerals mated at $831,600; Engineers, 338 employees and estimated payroll of $1,692,348; Daily Sentinel, 176 workers, payroll of $371,681; Mesa College, 58 employees and a payroll of $198,910. Mesa Colleges reported payroll was a drop from $204,249 during 1953 when there were 69 fulltime employees, the drop-o- ff being attributed to a cut-bain the farm training program under the Veterans Administration. PHARMACY RELIABLE PRESCRIPTIONS PHONE 206 EAGLE, COLORADO THREE FAMOUS music and theatrical personages rehearse one of the many amateur shows put on at the Aspen Opera House. Fred Glidden, Jose Marsala, who wrote Dont Cry Joe," and Frank Meyers, former MGM director, watch progress. CASTLE SILVER EAGLE VUE SERVICE & LIQUORS er, Phone 92 Eagle, Colo. Barber q UHOP EAGLE, COLORADO The First National Bank of Eagle County Eagle, Colorado Serving Eagle Residents Since 1908 Member Fed. Deposit Ins. Corp. Mem. Fed. Res. System ck CITY COMFORTABLE SERVICE STATION - MODERN Sinclair Oils A Gas Otto M. Letson, Prop. Grand VaUey, Colo. Eagle COURT Colorado Hidden Splendor Mining Co. A SUBSIDIARY OF ATLAS CORPORATION Our Program for 1955: To complete the building of a modern mining camp with a competent organization, an efficient installation of machinery and equipment, advanced methods and techniques. To push intensive exploration and develop ment of the Companys ore reserves, To step up production of ore possiblei. as rapidly as take our place in the mining industry of the Colorado Plateau, serving national defense and the welfare of mankind. To 5th EAGLE Lounge k 8C ROOD URANIUM CENTER BLDG. GRAND JUNCTION, COLORADO |
